<template>

<div>
  <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>权限管理</el-breadcrumb-item>
      <el-breadcrumb-item>角色列表</el-breadcrumb-item>
  </el-breadcrumb>
  <el-card>
    <el-row>
      <el-col>
        <el-button type="primary" @click="addDialogVisible = true">添加角色</el-button>
      </el-col>
    </el-row>
    <el-table :data="roleList" border stripe>
      <!-- /张开列 -->
      <el-table-column type="expand">
        <template slot-scope="scope">
          <el-row :class="['bdbottom',i1 === 0 ? 'bdtop' :'','vcenter']" v-for="(item1,i1) in scope.row.children" :key="item1.id">
            <el-col :span="5">
              <el-tag  closable @close="removeRightById(scope.row,item1.id)">
                {{item1.authName}}
              </el-tag>
              <i class="el-icon-caret-right"></i>
            </el-col>
            <el-col :span="19">
              <el-row :class="[i2 === 0 ? '' :'bdtop','vcenter']" v-for="(item2,i2) in item1.children" :key="item2.id">
                <el-col :span="6">
                  <el-tag type="success"  closable @close="removeRightById(scope.row,item2.id)">
                    {{item2.authName}}
                  </el-tag>
                  <i class="el-icon-caret-right"></i>
                </el-col>
                <el-col :span="18">
                  <el-tag type="warning" v-for="item3 in item2.children" :key="item3.id" closable @close="removeRightById(scope.row,item3.id)"> {{item3.authName}}</el-tag>
                </el-col>
              </el-row>
            </el-col>
            <el-col></el-col>
          </el-row>
        </template>
      </el-table-column>
      <!-- 索引列 -->
      <el-table-column type="index"></el-table-column>
      <el-table-column label="角色名称" prop="roleName"></el-table-column>
      <el-table-column label="角色名称" prop="roleDesc"></el-table-column>
      <el-table-column label="操作" width="300px">
        <template slot-scope ="scope">
          <el-button type="primary" icon="el-icon-edit" size="mini"  @click="showEditDialog(scope.row.id)">编辑</el-button>
          <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)" >删除</el-button>
          <el-button type="warning" icon="el-icon-setting" size="mini" @click="showSetRight(scope.row)">分配权限</el-button>
        </template>
      </el-table-column>
    </el-table>
  </el-card>

<el-dialog title="添加角色" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
  <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="80px">
  <el-form-item label="角色名称" prop="roleName">
    <el-input v-model="addForm.roleName"></el-input>
  </el-form-item>
  <el-form-item label="角色描述" prop="roleDesc">
    <el-input v-model="addForm.roleDesc"></el-input>
  </el-form-item>
  </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addRoles">确 定</el-button>
  </span>
</el-dialog>
<el-dialog title="编辑角色" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
  <el-form :model="editForms" :rules="editFormRules" ref="editFormRef" label-width="80px">
  <el-form-item label="角色名称" >
    <el-input v-model="editForms.roleName" disabled></el-input>
  </el-form-item>
  <el-form-item label="角色描述" prop="roleDesc">
    <el-input v-model="editForms.roleDesc"></el-input>
  </el-form-item>
  </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
</el-dialog>
<!-- 分配权限 -->
<el-dialog
  title="分配权限"
  :visible.sync="setDialogVisible"
  width="50%"
  @close="setRightClosed"
  >
  <!-- 树型控件 -->
  <el-tree :data="rightsList" :props="treeProps" show-checkbox node-key="id" default-expand-all :default-checked-keys="defKeys" ref="treeRef"></el-tree>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="allotRights">确 定</el-button>
  </span>
</el-dialog>
</div>
</template>

<script>

export default {
  data () {
    return {
      roleList: [],
      addDialogVisible: false,
      addForm: {
        roleName: '',
        roleDesc: ''
      },
      addFormRules: {
        roleName: [
          { required: true, message: '请输入角色名', trigger: 'blur' },
          { min: 2, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        roleDesc: [
          { required: true, message: '请输入角色描述', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ]
      },
      // 控制修改用户对话框显示隐藏
      editDialogVisible: false,
      editForms: {},
      editFormRules: {
        roleName: [
          { required: true, message: '请输入角色名', trigger: 'blur' },
          { min: 2, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        roleDesc: [
          { required: true, message: '请输入角色描述', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ]
      },
      setDialogVisible: false,
      // 所有权限的数据
      rightsList: [],
      // 树型控件属性绑定对象
      treeProps: {
        label: 'authName',
        children: 'children'
      },
      defKeys: [],
      roleId: ''
    }
  },
  created () {
    this.getRoleList()
  },
  methods: {
    async getRoleList () {
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        this.$message.error('获取失败')
      }
      this.roleList = res.data
      console.log(this.roleList)
    },
    // 添加用户对话框关闭重置事件
    addDialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    addRoles () {
      this.$refs.addFormRef.validate(async valid => {
        // eslint-disable-next-line no-useless-return
        if (!valid) return
        const { data: res } = await this.$http.post('roles', this.addForm)
        if (res.meta.status !== 201) {
          return this.$message.error('获取失败')
        }
        this.$message.success('添加角色成功')
        this.addDialogVisible = false
        this.getRoleList()
      })
    },
    async showEditDialog (id) {
      const { data: res } = await this.$http.get('roles/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询角色失败')
      }
      this.editForms = res.data
      this.editDialogVisible = true
    },
    // 监听修改对话框关闭事件
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    editUserInfo () {
      this.$refs.editFormRef.validate(async vaild => {
        // eslint-disable-next-line no-useless-return
        if (!vaild) return
        const { data: res } = await this.$http.put('roles/' + this.editForms.roleId, {
          roleName: this.editForms.roleName,
          roleDesc: this.editForms.roleDesc
        })
        if (res.meta.status !== 200) {
          return this.$message.error('更新角色失败')
        }
        this.editDialogVisible = false
        this.getRoleList()
        this.$message.success('更新角色成功')
      })
    },
    async removeUserById (id) {
      const confirmResult = await this.$confirm('此操作将永久删除该角色，是否继续', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult === 'cancel') {
        return this.$message.info('已取消')
      }
      const { data: res } = await this.$http.delete('roles/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除失败')
      }
      this.getRoleList()
      this.$message.success('删除成功')
    },
    async removeRightById (role, rightId) {
      const confirmResult = await this.$confirm('此操作将永久删除该角色，是否继续', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult === 'cancel') {
        return this.$message.info('取消了删除')
      }
      const { data: res } = await this.$http.delete(`roles/${role.id}/rights/${rightId}`)
      if (res.meta.status !== 200) {
        return this.$message.error('删除失败')
      }
      // this.getRoleList()
      role.children = res.data
      this.$message.success('删除成功')
    },
    // 展示分配权限的对话框
    async showSetRight (role) {
      this.roleId = role.id
      // 获取所有权限数据
      const { data: res } = await this.$http.get('rights/tree')
      if (res.meta.status !== 200) {
        return this.$message.error('获取权限失败')
      }
      // 把获取到的权限数据保存到data中
      this.rightsList = res.data
      this.getLeafKeys(role, this.defKeys)
      this.setDialogVisible = true
    },
    // 通过递归获取所有三级角色id
    getLeafKeys (node, arr) {
      // 如果当前node节点不包含children属性则是三级节点
      if (!node.children) {
        return arr.push(node.id)
      }
      node.children.forEach(item =>
        this.getLeafKeys(item, arr))
    },
    // 监听分配权限对话框的关闭事件
    setRightClosed () {
      this.defKeys = []
    },
    async allotRights () {
      const keys = [
        ...this.$refs.treeRef.getCheckedKeys(),
        ...this.$refs.treeRef.getHalfCheckedKeys()
      ]
      const idStr = keys.join(',')
      const { data: res } = await this.$http.post(`roles/${this.roleId}/rights`, { rids: idStr })
      if (res.meta.status !== 200) {
        return this.$message.error('分配失败')
      }
      this.$message.success('分配成功')
      this.getRoleList()
      this.setDialogVisible = false
    }
  }
}
</script>

<style lang="less" scoped>
  .el-tag{
    margin: 7px;
  }
  .bdtop{
    border-top: 1px solid #eee;
  }
  .bdbottom{
    border-bottom: 1px solid #eee;
  }
  // .vcenter{
  //   display: flex;
  //   align-items: center;
  // }
</style>
